It doesn't take long to build a collection of the latest scams. I presented one round-up of scams last week, and already have enough material for another. These are going around, so be wary.

A Bethlehem woman emailed me about a call she'd received at home one night. Through his heavy foreign accent, a man mumbled that he was with Microsoft, and her computer had been corrupted. How, she asked? Do you play games, the man questioned? No. Do you email? Yes. Do you surf the Internet?

The caller never got the opportunity to make whatever sales pitch he had, because the woman's husband told her to get off the phone because it was a scam. I'm sure that if she'd stayed on the line, the caller would have offered some line about being able to fix the "corruption."

This next scam landed right in the Watchdog's email at home. It sure looked like it was from one of my credit cards, Discover. It even had the familiar Discover logo. It threatened that my card would be deactivated if I didn't click on a link to log into my account. I was sooooooo scared ... that I deleted the email. This scam isn't even creative anymore. It's been exposed countless times, but I guess enough people still fall for it to make it worth some crook's while.

The clue that this was a scam is that the website they wanted me to click on isn't the Discover site. It was close, but not close enough. Plus, there was a typo in the email, which usually is a clue that some lazy dirtbag is behind the email. If you get garbage like this, delete it. Call your credit card if you really suspect there's a problem.

A new version of the scam is making the rounds, this time with text messages telling people they've won a gift card from Wal-Mart. It directs you to click on a link and enter information. The Better Business Bureau and Wal-Mart say this is a classic phishing scam. Delete the text message if you get it.

Finally, federal authorities in Philadelphia announced last week they'd indicted a Nigerian man for wire fraud in connection with sales on Craigslist. According to court records, Adebowale Ayodeji Owoaje would contact people selling things on Craigslist and have a co-conspirator send a cashier's check in excess of the agreed upon sale price. Sellers were told the check amount was incorrect and instructed to deposit the check and return the difference by wire transfer.

You should know by now what authorities said happened next. The check was fake, and the money wired by Craigslist sellers is gone. Never wire money to anyone you don't know. If you're selling on Craigslist, sell locally.